WING DIKE FOR FINE-GRAINED WASTE DISPOSAL AREA Russian patent published in 2010 - IPC E02B7/06 E02B3/16 

FIELD: building.

SUBSTANCE: wing dike contains a stepped wall that separates a stepped retaining prism from stepped inwashed waste that keeps the wall plumb. The wall is made of interconnected gabions with their baskets being box-shaped, made of wire net and filled with gravel and sludge. Between the wall and waste, there is an anti-piping or anti-filtration layer of geosynthetic material that covers an upstream face of the wall in steps and goes beyond the waste level in front of the wall, herewith forming an upstream prism of the causeway after lying. The causeway contains a filmed anti-filtration coating of the disposal area base in front of the wall, the wall base and drainage located in the base of a retaining prism and connected with a waste hydrotransport system. The anti-filtration layer is made of a polymer film covered with geotextile, while the anti-piping layer is made of a geotextile cloths with the design diametre of water-supplying holes in the geotextile cloth fulfils the condition: where d^max is a the maximum diametre of waste particles which are possible and admissible to be moved towards the anti-piping element by the filtration stream in waste inwash. The gabion baskets can be filled with sand or gravel-sand ground in an individual synthetic package, and the anti-piping layer can consist of two or more geotextile cloths through-thickness.

EFFECT: downsizing of the causeway and increasing disposal area capacity.

6 cl, 4 dwg, 2 ex